Explore floating and sinking.
Fill a tub with water (clear is best) and find items to test whether they will float or sink.
For greater depth of discussion, you could make boats out of the same number of Lego blocks to see which designs float best.
Is Jesus a good friend to have? Why?
‘There were 12 Disciples’
‘Stick with Jesus’ copyright Simone Richardson from the album ‘A Very Very Very Big God’ Emu Music (2004)